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Diao H, Li Y, Sun W, Zhang J, Wang M, Chen Y, Zhou F, Li X. REM sleep deprivation induced by the modified multi-platform method has detrimental effects on memory: A systematic review and meta-analysis. Behav Brain Res 2023; 454:114652. [PMID: 37652237 DOI: 10.1016/j.bbr.2023.114652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/17/2023] [Accepted: 08/29/2023] [Indexed: 09/02/2023]
Abstract
The modified multi-platform method (MMPM) is used to induce animal models of paradoxical sleep deprivation and impairs memory in rodents. However, variations in MMPM protocols have contributed to inconsistent conclusions across studies. This meta-analysis aimed to assess the variations of the MMPM and their effects on memory in rats and mice. A comprehensive search identified 60 studies, and 50 were included in our meta-analysis. Overall, the meta-analysis showed that the MMPM significantly reduced the percentage of time spent in target quadrants (I2 = 54 %, 95 % confidence interval [CI] = [-1.83, -1.18]) and the number of platform-area crossings (I2 = 26 %, 95 % CI = [-1.71, -1.07]) in the Morris water maze (MWM) and shortened the latency to entering the dark compartment in the passive avoidance task (I2 = 68 %, 95 % CI = [-1.36, -0.57]), but it increased the number of errors in the radial arm water maze (RAWM) (I2 = 59 %, 95 % CI = [1.29, 2.07]). Additionally, mice performed worse on the MWM, whereas rats performed worse on the passive avoidance task. More significant memory deficits were found in cross-learning and post-learning MMPM in the MWM and RAWM, respectively. This study provided evidence that the MMPM can be used in preclinical studies of memory deficits induced by paradoxical sleep deprivation.
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Affiliation(s)
- Huaqiong Diao
- Department of Encephalopathy, Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yiming Li
- Department of Chinese Medicine, Zibo Central Hospital, Shandong, China
| | - Wenjun Sun
- Department of Encephalopathy, Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Jing Zhang
- Department of Encephalopathy, Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Min Wang
- Department of Encephalopathy, Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yufei Chen
- Department of Encephalopathy, Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Fen Zhou
- School of Nursing, Beijing University of Chinese Medicine, Beijing, China.
| | - Xiaoli Li
- Department of Encephalopathy, Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China.
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2
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Wen YJ, Yang WJ, Guo CN, Qiu MH, Kroeger D, Niu JG, Zhan SQ, Yang XF, Gisabella B, Vetrivelan R, Lu J. Pontine control of rapid eye movement sleep and fear memory. CNS Neurosci Ther 2023; 29:1602-1614. [PMID: 36794544 PMCID: PMC10173714 DOI: 10.1111/cns.14123] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/20/2023] [Accepted: 01/31/2023] [Indexed: 02/17/2023] Open
Abstract
AIMS We often experience dreams of strong irrational and negative emotional contents with postural muscle paralysis during rapid eye movement (REM) sleep, but how REM sleep is generated and its function remain unclear. In this study, we investigate whether the dorsal pontine sub-laterodorsal tegmental nucleus (SLD) is necessary and sufficient for REM sleep and whether REM sleep elimination alters fear memory. METHODS To investigate whether activation of SLD neurons is sufficient for REM sleep induction, we expressed channelrhodopsin-2 (ChR2) in SLD neurons by bilaterally injecting AAV1-hSyn-ChR2-YFP in rats. We next selectively ablated either glutamatergic or GABAergic neurons from the SLD in mice in order to identify the neuronal subset crucial for REM sleep. We finally investigated the role of REM sleep in consolidation of fear memory using rat model with complete SLD lesions. RESULTS We demonstrate the sufficiency of the SLD for REM sleep by showing that photo-activation of ChR2 transfected SLD neurons selectively promotes transitions from non-REM (NREM) sleep to REM sleep in rats. Diphtheria toxin-A (DTA) induced lesions of the SLD in rats or specific deletion of SLD glutamatergic neurons but not GABAergic neurons in mice completely abolish REM sleep, demonstrating the necessity of SLD glutamatergic neurons for REM sleep. We then show that REM sleep elimination by SLD lesions in rats significantly enhances contextual and cued fear memory consolidation by 2.5 and 1.0 folds, respectively, for at least 9 months. Conversely, fear conditioning and fear memory trigger doubled amounts of REM sleep in the following night, and chemo-activation of SLD neurons projecting to the medial septum (MS) selectively enhances hippocampal theta activity in REM sleep; this stimulation immediately after fear acquisition reduces contextual and cued fear memory consolidation by 60% and 30%, respectively. CONCLUSION SLD glutamatergic neurons generate REM sleep and REM sleep and SLD via the hippocampus particularly down-regulate contextual fear memory.
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Affiliation(s)
- Yu Jun Wen
- Ningxia Key Laboratory of Craniocerebral Diseases, Department of Anatomy, Histology and Embryology, School of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia, China.,Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Wen Jia Yang
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Shanghai Yueyang Integrated Medicine Hospital, Shanghai, China
| | - Chun Ni Guo
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurology, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Mei Hong Qiu
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurobiology, School of Basic Medical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Daniel Kroeger
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Anatomy, Physiology & Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, Alabama, USA
| | - Jian Guo Niu
- Ningxia Key Laboratory of Craniocerebral Diseases, Department of Anatomy, Histology and Embryology, School of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia, China.,Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Shu Qin Zhan
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xi Fei Yang
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
| | - Barbara Gisabella
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Ramalingam Vetrivelan
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Jun Lu
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Stroke Center, Department of Neurology, 1st Hospital of Jilin University, Changchun, Jilin, China
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3
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Machida M, Sweeten BLW, Adkins AM, Wellman LL, Sanford LD. Basolateral Amygdala Regulates EEG Theta-activity During Rapid Eye Movement Sleep. Neuroscience 2021; 468:176-185. [PMID: 34147563 DOI: 10.1016/j.neuroscience.2021.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 11/18/2022]
Abstract
Pharmacological and optogenetic studies have demonstrated that the basolateral amygdala (BLA) plays a pivotal role in regulating fear-conditioned changes in sleep, in particular, rapid eye movement sleep (REM). However, the linkage between BLA and REM regulation has been minimally examined. In this study, we optogenetically activated or inhibited BLA selectively during spontaneous REM, and determined the effects on REM amounts and on hippocampus regulated EEG-theta (θ) activity. Excitatory (CaMKIIα-hChR2 (E123A)-eYFP-WPRE) or inhibitory (CaMKIIα-eNpHR3.0-eYFP-WPRE) optogenetic constructs were stereotaxically delivered targeting glutamatergic cells in BLA (BLAGlu) of mice. Viral constructs without opsin (CaMKIIα-eYFP-WPRE) were used as controls. All mice were implanted with telemetry transmitters for monitoring electroencephalography (EEG), activity, and body temperature, and with optic cannulas for light delivery to the BLA. BLAGlu were optogenetically activated by blue light (473 nm), or inhibited by green light (532 nm), in 10 s epochs during REM, or non-REM (NREM), in undisturbed mice. Sleep amounts and EEG activity were analyzed. Projections from BLAGlu to neurons in hippocampus were immunohistochemically (IHC) examined. Brief optogenetic activation of BLAGlu during REM immediately reduced EEG theta activity (5-8 Hz, REM-θ), without affecting overall amount and propensity of sleep, while optogenetic inhibition increased REM-θ. Stimulation during NREM had no effect on EEG spectra or sleep. IHC results showed that glutamatergic and GABAergic cells in CA3 of the hippocampus received inputs from BLAGlu projection neurons. Activation of BLAGlu reduced, and inhibition increased, REM-θ without otherwise altering sleep. Optogenetic stimulation of BLAGlu may be useful for systematically manipulating sleep-related amygdalo-hippocampal interactions.
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Affiliation(s)
- Mayumi Machida
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Brook L W Sweeten
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Austin M Adkins
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Laurie L Wellman
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Larry D Sanford
- Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA, USA.
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4
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Vaseghi S, Arjmandi-Rad S, Kholghi G, Nasehi M. Inconsistent effects of sleep deprivation on memory function. EXCLI JOURNAL 2021; 20:1011-1027. [PMID: 34267613 PMCID: PMC8278215 DOI: 10.17179/excli2021-3764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 05/26/2021] [Indexed: 12/12/2022]
Abstract
In this review article, we aimed to discuss the role of sleep deprivation (SD) in learning and memory processing in basic and clinical studies. There are numerous studies investigating the effect of SD on memory, while most of these studies have shown the impairment effect of SD. However, some of these studies have reported conflicting results, indicating that SD does not impair memory performance or even improves it. So far, no study has discussed or compared the conflicting results of SD on learning and memory. Thus, this important issue in the neuroscience of sleep remains unknown. The main goal of this review article is to compare the similar mechanisms between the impairment and the improvement effects of SD on learning and memory, probably leading to a scientific solution that justifies these conflicting results. We focused on the inconsistent effects of SD on some mechanisms involved in learning and memory, and tried to discuss the inconsistent effects of SD on learning and memory.
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Affiliation(s)
- Salar Vaseghi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.,Department of Cognitive Neuroscience, Institute for Cognitive Science Studies (ICSS), Tehran, Iran
| | - Shirin Arjmandi-Rad
- Institute for Cognitive & Brain Sciences, Shahid Beheshti University, Tehran, Iran
| | - Gita Kholghi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Nasehi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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5
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Machida M, Sutton AM, Williams BL, Wellman LL, Sanford LD. Differential behavioral, stress, and sleep responses in mice with different delays of fear extinction. Sleep 2020; 42:5536232. [PMID: 31322681 DOI: 10.1093/sleep/zsz147] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/28/2018] [Indexed: 11/12/2022] Open
Abstract
STUDY OBJECTIVES Sleep, in particular rapid eye movement (REM), has been linked to fear learning and extinction; however, their relationship is poorly understood. We determined how different delays of extinction training (ET) impact fear-conditioned behaviors, changes in sleep, and stress responses. METHODS EEG activity, movement, and body temperature in mice were monitored via telemetry. Following contextual fear conditioning (shock training [ST]), separate groups of mice were reexposed to the context at 24-hour post-ST (24h ET-1) and at 48-hour post-ST (48h ET-1). Post-ET sleep amount and sleep-associated EEG (delta and theta) activity were compared to baseline and to post-ST sleep. Freezing, locomotion, grooming, and rearing were monitored to determine effects of ET on fear behaviors. Body temperature immediately after ET was monitored to assess stress-induced hyperthermia (SIH). RESULTS 24h ET-1 and 48h ET-1 produced similar freezing and REM reductions, but dissimilar rearing activity and SIH. 24h ET-1 was followed by periods of suppressed REM-associated theta (REM-θ) activity, immediately after ET and during the subsequent dark period. Suppressed REM-θ was specific to sleep after 24h ET-1, and did not occur after ST, nor after 48h ET-1. CONCLUSIONS ET-1 at 24 and 48 hours after ST was associated with similar freezing and REM amounts, but with differences in other overt behaviors, in REM-θ, and in SIH. Freezing was not predictive of changes in other fear-associated responses. This study demonstrated that consideration of time delay from fear acquisition to extinction is important when assessing the relationships between extinction and behavior, sleep, and stress responses.
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Affiliation(s)
- Mayumi Machida
- Sleep Research Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA
| | - Amy M Sutton
- Sleep Research Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA
| | - Brook L Williams
- Sleep Research Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA
| | - Laurie L Wellman
- Sleep Research Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA
| | - Larry D Sanford
- Sleep Research Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA
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6
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Sharma R, Sahota P, Thakkar MM. Sleep Loss Immediately After Fear Memory Reactivation Attenuates Fear Memory Reconsolidation. Neuroscience 2020; 428:70-75. [PMID: 31917354 DOI: 10.1016/j.neuroscience.2019.12.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 12/12/2019] [Accepted: 12/15/2019] [Indexed: 10/25/2022]
Abstract
Permanently stored memories become labile through a process called reactivation. Once reactivated, these memories need reconsolidation to become permanent. Sleep is critical for memory consolidation. Is sleep necessary for memory reconsolidation? We hypothesized that sleep loss immediately after fear reactivation (FR) will prevent memory reconsolidation. To test our hypothesis, two experiments were performed in adult male C57BL/6J mice exposed to contextual fear conditioning paradigm with inescapable foot shock as unconditional stimulus (US) and contextual cage as conditional stimulus (CS). Sleep loss was achieved either by 5 h of sleep deprivation (SD; Experiment 1) or by systemic infusion of modafinil (200 mg/Kg, ip), an FDA approved wake-promoting agent (Experiment 2). One hour after light-onset, fear memory acquisition (FMA) was performed on Day 1. Mice were allowed to explore CS for 5 min followed by presentation of US (7 foot-shocks; 0.5 mA, 2.0 s duration) at pseudorandom intervals. Controls were exposed to similar CS but no shocks were delivered. On Day 2, mice were exposed to CS for 2 min (without US; for FR) followed by either sleep loss or no sleep loss. On Day 3, fear memory recall (FMR) was performed by exposing mice to CS (without US) for 12 min. Percent time spent in freezing was monitored during FC, FR and FMR. Our results suggested that as compared to sleeping controls, mice with sleep loss immediately after FR displayed a significant reduction in percent time freezing during FMR. These results suggest that sleep loss may prevent memory reconsolidation.
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Affiliation(s)
- Rishi Sharma
- Harry S. Truman Memorial Veterans Hospital and Department of Neurology, University of Missouri-School of Medicine, Columbia, MO 65201, United States
| | - Pradeep Sahota
- Harry S. Truman Memorial Veterans Hospital and Department of Neurology, University of Missouri-School of Medicine, Columbia, MO 65201, United States
| | - Mahesh M Thakkar
- Harry S. Truman Memorial Veterans Hospital and Department of Neurology, University of Missouri-School of Medicine, Columbia, MO 65201, United States.
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7
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Karimi-Haghighi S, Haghparast A. Cannabidiol inhibits priming-induced reinstatement of methamphetamine in REM sleep deprived rats. Prog Neuropsychopharmacol Biol Psychiatry 2018; 82:307-313. [PMID: 28870635 DOI: 10.1016/j.pnpbp.2017.08.022] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 12/27/2022]
Abstract
Methamphetamine (METH) is a widely abused and a severely addictive psychostimulant. Relapse is the main cause of concern when treating addiction. It could manifest after a long period of abstinence. Previous studies showed that there is a strong connection between sleep impairment and relapse. Also, it has been reported that cannabidiol might be a potential treatment for drug craving and relapse. In this study, we used conditioned place preference (CPP) to investigate whether Cannabidiol (CBD), a phytocannabinoid, can prevent METH-induced reinstatement in Rapid Eye Movement Sleep Deprived (RSD) rats. In order to induce CPP, the animals were given METH (1mg/kg; sc) for five days. The effective priming dose of METH (0.5mg/kg, sc) reinstated the extinguished METH-induced CPP. In order to investigate the effect of RSD on METH-induced reinstatement, we used the inverted flowerpot technique to deprive the rats of REM sleep. We found that 24h-RSD could facilitate priming-induced reinstatement of METH. In addition to this, the ICV administration of CBD 10μg/5μl could suppress the METH-induced reinstatement even in RSD rats. In conclusion, the administration of CBD 10μg/5μl effectively prevents METH-induced CPP, even in a condition of stress. CBD can be considered an agent that reduces the risk of the relapse; however, this requires more investigation.
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Affiliation(s)
- Saeideh Karimi-Haghighi
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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8
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Macdonald KJ, Cote KA. Sleep physiology predicts memory retention after reactivation. J Sleep Res 2016; 25:655-663. [DOI: 10.1111/jsr.12423] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 02/23/2016] [Accepted: 03/25/2016] [Indexed: 11/28/2022]
Affiliation(s)
| | - Kimberly A. Cote
- Psychology Department; Brock University; St Catharines Ontario Canada
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9
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Pace-Schott EF, Germain A, Milad MR. Effects of sleep on memory for conditioned fear and fear extinction. Psychol Bull 2015; 141:835-57. [PMID: 25894546 DOI: 10.1037/bul0000014] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Learning and memory for extinction of conditioned fear is a basic mammalian mechanism for regulating negative emotion. Sleep promotes both the consolidation of memory and the regulation of emotion. Sleep can influence consolidation and modification of memories associated with both fear and its extinction. After brief overviews of the behavior and neural circuitry associated with fear conditioning, extinction learning, and extinction memory in the rodent and human, interactions of sleep with these processes will be examined. Animal and human studies suggest that sleep can serve to consolidate both fear and extinction memory. In humans, sleep also promotes generalization of extinction memory. Time-of-day effects on extinction learning and generalization are also seen. Rapid eye movement (REM) may be a sleep stage of particular importance for the consolidation of both fear and extinction memory as evidenced by selective REM deprivation experiments. REM sleep is accompanied by selective activation of the same limbic structures implicated in the learning and memory of fear and extinction. Preliminary evidence also suggests extinction learning can take place during slow wave sleep. Study of low-level processes such as conditioning, extinction, and habituation may allow sleep effects on emotional memory to be identified and inform study of sleep's effects on more complex, emotionally salient declarative memories. Anxiety disorders are marked by impairments of both sleep and extinction memory. Improving sleep quality may ameliorate anxiety disorders by strengthening naturally acquired extinction. Strategically timed sleep may be used to enhance treatment of anxiety by strengthening therapeutic extinction learned via exposure therapy. (PsycINFO Database Record
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Affiliation(s)
- Edward F Pace-Schott
- Department of Psychiatry, Harvard Medical School and Massachusetts General Hospital
| | - Anne Germain
- Department of Psychiatry, University of Pittsburgh
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10
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The role of rapid eye movement sleep for amygdala-related memory processing. Neurobiol Learn Mem 2015; 122:110-21. [PMID: 25638277 DOI: 10.1016/j.nlm.2015.01.008] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 12/19/2014] [Accepted: 01/19/2015] [Indexed: 01/01/2023]
Abstract
Over the years, rapid eye movement (REM) sleep has been associated with general memory consolidation, specific consolidation of perceptual, procedural, emotional and fear memories, brain maturation and preparation of waking consciousness. More recently, some of these associations (e.g., general and procedural memory consolidation) have been shown to be unlikely, while others (e.g., brain maturation and consciousness) remain inconclusive. In this review, we argue that both behavioral and neurophysiological evidence supports a role of REM sleep for amygdala-related memory processing: the amygdala-hippocampus-medial prefrontal cortex network involved in emotional processing, fear memory and valence consolidation shows strongest activity during REM sleep, in contrast to the hippocampus-medial prefrontal cortex only network which is more active during non-REM sleep. However, more research is needed to fully understand the mechanisms.
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Chen L, Tian S, Ke J. Rapid eye movement sleep deprivation disrupts consolidation but not reconsolidation of novel object recognition memory in rats. Neurosci Lett 2014; 563:12-6. [DOI: 10.1016/j.neulet.2014.01.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 12/24/2013] [Accepted: 01/14/2014] [Indexed: 01/21/2023]
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12
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Colavito V, Fabene PF, Grassi-Zucconi G, Pifferi F, Lamberty Y, Bentivoglio M, Bertini G. Experimental sleep deprivation as a tool to test memory deficits in rodents. Front Syst Neurosci 2013; 7:106. [PMID: 24379759 PMCID: PMC3861693 DOI: 10.3389/fnsys.2013.00106] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 11/21/2013] [Indexed: 12/19/2022] Open
Abstract
Paradigms of sleep deprivation (SD) and memory testing in rodents (laboratory rats and mice) are here reviewed. The vast majority of these studies have been aimed at understanding the contribution of sleep to cognition, and in particular to memory. Relatively little attention, instead, has been devoted to SD as a challenge to induce a transient memory impairment, and therefore as a tool to test cognitive enhancers in drug discovery. Studies that have accurately described methodological aspects of the SD protocol are first reviewed, followed by procedures to investigate SD-induced impairment of learning and memory consolidation in order to propose SD protocols that could be employed as cognitive challenge. Thus, a platform of knowledge is provided for laboratory protocols that could be used to assess the efficacy of drugs designed to improve memory performance in rodents, including rodent models of neurodegenerative diseases that cause cognitive deficits, and Alzheimer's disease in particular. Issues in the interpretation of such preclinical data and their predictive value for clinical translation are also discussed.
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Affiliation(s)
- Valeria Colavito
- Department of Neurological and Movement Sciences, University of Verona Verona, Italy
| | - Paolo F Fabene
- Department of Neurological and Movement Sciences, University of Verona Verona, Italy
| | | | - Fabien Pifferi
- Mécanismes Adaptatifs et Evolution, UMR 7179 Centre National de la Recherche Scientifique, Muséum National d'Histoire Naturelle Brunoy, France
| | - Yves Lamberty
- Neuroscience Therapeutic Area, UCB Pharma s.a. Braine l'Alleud, Belgium
| | - Marina Bentivoglio
- Department of Neurological and Movement Sciences, University of Verona Verona, Italy
| | - Giuseppe Bertini
- Department of Neurological and Movement Sciences, University of Verona Verona, Italy
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13
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Shi HS, Luo YX, Xue YX, Wu P, Zhu WL, Ding ZB, Lu L. Effects of sleep deprivation on retrieval and reconsolidation of morphine reward memory in rats. Pharmacol Biochem Behav 2011; 98:299-303. [PMID: 21255602 DOI: 10.1016/j.pbb.2011.01.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 12/21/2010] [Accepted: 01/07/2011] [Indexed: 11/18/2022]
Abstract
Relapse induced by exposure to cues associated with drugs of abuse is a major challenge to the treatment of drug addiction. Drug seeking can be inhibited by manipulation of the reconsolidation of drug-related memory. Sleep has been proposed to be involved in various memory processes. However, the role of sleep in drug reward memory is not clear. The present study used conditioned place preference to examine the effects of total sleep deprivation on retrieval and reconsolidation of morphine reward memory in rats. Six-hour total sleep deprivation had no effect on the retrieval of morphine reward memory. However, sleep deprivation from 0-6 h, but not 6-12 h, after re-exposure disrupted the reconsolidation of morphine reward memory. This impairment was not attributable to the formation of an aversive associative memory between the drug-paired context and sleep deprivation. Our findings suggest that sleep plays a critical role in morphine reward memory reconsolidation, and sleep deprivation may be a potential non-pharmacotherapy for the management of relapse associated with drug-related memory.
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Affiliation(s)
- Hai-Shui Shi
- National Institute on Drug Dependence, Peking University, Beijing 100191, China
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